My monitor is giving me horizontal lines whenever i turn the system on. Actually when I on the system my monitor tends to give the lines on itself for few seconds and after that everything goes well. Also it gives me some similar kind of lines when i am working on any program. I mean to say that whenever i am accomplishing any task at that it gives me these lines. I don't know what is wrong with the Dell 2500FPW monitor and why it is giving me this problem. Please help me to get rid of this problem.